40/50QZ Specific Machine for Crankshaft
HIGHLIGHT
The Specific Machine for Crankshaft is a CNC Lathe designed for high-efficiency and precision machining of crankshafts, specifically developed for the manufacturing needs of the automotive, marine, and heavy machinery industries. By integrating sub-spindle collaborative control, a dedicated indexing fixture system, and synchronous rotation technology, this equipment enables complex eccentric machining of single-throw and multi-throw crankshafts, significantly improving processing efficiency and dynamic stability to meet the demands of high-precision, large-volume crankshaft production.
Technical Specifications
| Parameter | Name | unit | 40/50QZ |
| Bed | Bed Configuration | / | The bed base is a single unit with a standard 45° inclination |
| X/Z Guideway Form | / | Precision Linear Roller Guideways | |
| Working Range | Maximum Turning Diameter On The Bed | mm | Φ500 |
| Maximum Cutting Diameter | mm | Shaft: φ250, Disc: φ400 | |
| Maximum Processing Length | mm | 500 | |
| Maximum Tip Distance | mm | 590 | |
| Feed | Maximum travel of X/Z-axis | mm | 220 / 650 |
| Fast moving speed of X/Z-axis | m/min | 20 / 20 | |
| Spindle | Spindle Head | HSK | A2-8 |
| Spindle Taper | 100# Metric Cone | ||
| Spindle Through-Hole Diameter | mm | Φ90 | |
| Maximum Spindle Speed | r/min | 3000 | |
| Sub-spindle | Sub-spindle Head | HSK | A2-5 |
| Through-Hole Diameter | mm | Φ46 | |
| Maximum Sub-spindle Speed | r/min | 1000 | |
| Chuck | Spindle Axis | Inch | 8″ (hollow) |
| Sub-spindle | Inch | 6″ (hollow) | |
| Turret | Type of Turret | / | 100-8T |
| Tool Holder Specification | mm | □25*25, Round Hole Tool Holder Φ40 | |
| Chip Removal | Chip Removal Method | Automatic Rear | |
| Power of Main Motor | Spindle Servo Motor Power | KW | 11-15 |
| External Dimension | Length*Width*Height | mm | 2550*1730*1840 |
| Weight | kg | 4300 / 4700 | |
| Machining Accuracy | Roundness | mm | 0.005 |
| Diameter Consistency | mm | 0.015 / 300 | |
| Flatness | mm | 0.015 / 300 (concave only) | |
| Surface Roughness (Aluminum/Steel) | Ra | 0.8～1.6 | |
| Forms of protection | Fully Closed Shroud | set | 1 |
Structure
It is equipped with special fixtures and indexing mechanisms for the auxiliary spindle and relevant crankshafts. The eccentric machining of single and multiple crankshafts is possible. The main shaft and auxiliary main shaft can rotate synchronously to increase the dynamic stiffness of the crankshaft during turning.
